Biodiversity
This type of reproduction is quick, produces many offspring, without much genetic variation.
Asexual Reproduction
Ice melting is an example of this.
Physical Change
Which is greater? 1ppm, 1ppb, 1ppt
1ppm
What is the unit for resistance?
Why is space junk dangerous?
Travels at high speeds
Dogs have 78 chromosomes. In order to ensure species survival, a dog's sperm or eggs must contain how many chromosomes after meiosis?
39
The word for this compound is: H2O2
Dihydrogen Dioxide
Fats/Lipids
A type of cell that uses a liquid electrolyte with an anode and cathode.
Wet Cell
What is parallax?
The apparent shift in a star/celestial body when viewed at different angles.
The idea that some traits are passed on while others are learned in your life time. (Hint: two similar words)
Nature vs. Nurture
The correct name for this compound is: FeO
Iron (II) Oxide
The process by which toxins become less concentrated in the environment. (Hint: starts with a 'D')
Dilution
How can you make an electromagnet stronger?
Ans vary (3 possibilities).
'Humans should send animals into space to test the effects of zero gravity' is an example of:
a) political
b) environmental
c) ethical
ethical
Attached earlobes are an example of this type of trait.
Discrete
How many neutrons does Fluorine have?
10
LD50 Measures this.
The amount of substance required to kill 50% of a test population.
What energy transformations take place in a thermocouple?
Thermal energy to electrical energy
An unknown planet rotates in about 26 hours and has a rocky surface. What type of planet would it be considered?
Terrestrial
A process by which humans select for desirable traits.
Artificial Selection
H2O(l) → H2(g) + O2(g)
Give the 'words' description for the reaction above.
Sample: Water (Dihydrogen dioxide) breaks down into Hydrogen gas and Oxygen Gas.
When acids and bases are mixed together they produce a salt and water in this type of reaction.
Neutralization
The resistance of a wire can be reduced by (i) the diameter of the wire or by (ii) the length of the wire.
i) increasing
ii) decreasing
A vast collection of stars held together by gravitational attraction is called a
Galaxy